20102220112012 has 24 divisors (see below), whose sum is σ = 35574473516400. Its totient is φ = 9938086853376.

The previous prime is 20102220112003. The next prime is 20102220112057. The reversal of 20102220112012 is 21021102220102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58361448 + ... + 58704880.

It is an arithmetic number, because the mean of its divisors is an integer number (1482269729850).

Almost surely, 2^{20102220112012} is an apocalyptic number.

It is an amenable number.

20102220112012 is a deficient number, since it is larger than the sum of its proper divisors (15472253404388).

20102220112012 is a wasteful number, since it uses less digits than its factorization.

20102220112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507945 (or 507943 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20102220112012 its reverse (21021102220102), we get a palindrome (41123322332114).

The spelling of 20102220112012 in words is "twenty trillion, one hundred two billion, two hundred twenty million, one hundred twelve thousand, twelve".